Where is the hottest hot spring in the world?

1. Norris Geyser Basin, Yellowstone. This tallest geyser in the world set the highest temperature ever recorded in the park. It's so far above sea level that the boiling point is 199°F rather than the sea-level 212°, but a hole drilled by scientists to 1,087 feet deep found a temperature of 459°F.



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Grand Prismatic Spring—Wyoming, USA Located in Yellowstone National Park, the Grand Prismatic Spring is the third-largest hot spring in the world. Its mesmerizing colors of orange, yellow, green, and blue are only one of its crowd-drawing attributes.

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The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States, and the third largest in the world, after Frying Pan Lake in New Zealand and Boiling Lake in Dominica.

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We recommend getting out of the water for 5 minutes every 15 minutes or so. This largely depends on the temperature of the pool you're in. You might need to get out more often in a hotter pool and less in a mild pool. Listen to your body.

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Water in hot springs can cause severe or fatal burns, and scalding water underlies most of the thin, breakable crust around hot springs. More than 20 people have died from burns suffered after they entered or fell into one of Yellowstone's hot springs.

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This is a dynamic list of hot springs in the United States. The Western states in particular are known for their thermal springs: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, Wyoming; but there are interesting hot springs in other states throughout the country.

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The Blue Lagoon (Iceland) Perhaps the most famous hot spring in the world, the Blue Lagoon in Iceland is as soothing as it is picturesque. The water temperature hovers between 98 and 102 degrees Fahrenheit at all times, making it an inviting place to take a dip.

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For those opting for tampons, make sure that the string is not clearly visible and change it as soon as you leave the onsen. Wash yourself well and refrain from using another tampon right away — give yourself enough time to cool down first.

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In October 2021, a 20-year-old woman suffered second-degree burns after she rushed into a hot spring at Yellowstone while trying to rescue her dog. The hot spring that she entered, Maiden's Grave Spring, has an average temperature of 200 degrees Fahrenheit, per the NPS.

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Over 20 people have died after falling into Yellowstone's hot springs, or after having become severely burned after touching one. The park's hot springs are one of the park's most dangerous features. However, deaths are still an incredibly rare event.

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10 of the Best Hot Springs in the United States
  • Dunton Hot Springs, Dolores, Colorado.
  • Yellowstone National Park, Wyoming, Montana, and Idaho.
  • Castle Hot Springs, Arizona.
  • Hot Springs National Park, Hot Springs, Arkansas.
  • Glenwood Springs, Colorado.
  • Truth or Consequences, New Mexico.


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